The goal of the IFL symposia is to bring together researchers actively engagedin the implementation and application of functional and function-basedprogramming languages. IFL 2018 will be a venue for researchers to present anddiscuss new ideas and concepts, work in progress, and publication-ripe resultsrelated to the implementation and application of functional languages andfunction-based programming.

Regular papers will undergo a rigorous review by the program committee, and willbe evaluated according to their correctness, novelty, originality, relevance,significance, and clarity. A set of regular papers will be conditionallyaccepted for publication. Authors of conditionally accepted papers will beprovided with committee reviews along with a set of mandatory revisions.Regular papers not accepted for publication will be considered as draft papers,at the request of the author.

Draft papers will be screened to make sure that they are within the scope ofIFL, and will be accepted for presentation or rejected accordingly.

Prior to the symposium: Authors of conditionally accepted papers and accepted presentations will submit a pre-proceedings version of their work that will appear in the draft proceedings distributed at the symposium. The draft proceedings does not constitute a formal publication.

We require that at least one of the authors present the work at IFL 2018.

After the symposium:

Authors of conditionally accepted papers will submit a revised versions of their paper for the formal post-proceedings. The program committee will assess whether the mandatory revisions have been adequately addressed by the authors and thereby determines the final accept/reject status of the paper. Our interest is to ultimately accept all conditionally accepted papers. If you are an author of a conditionally accepted paper, please make sure that you address all the concerns of the reviewers.

Authors of accepted presentations will be given the opportunity to incorporate the feedback from discussions at the symposium and will be invited to submit a revised full article for the formal post-proceedings. The program committee will evaluate these submissions according to their correctness, novelty, originality, relevance, significance, and clarity, and will thereby determine whether the paper is accepted or rejected.

### Publication

The formal proceedings will appear in the International Conference ProceedingsSeries of the ACM Digital Library.

At no time may work submitted to IFL be simultaneously submitted to othervenues; submissions must adhere to ACM SIGPLAN's republication policy:

The Peter Landin Prize is awarded to the best paper presented at thesymposium every year. The honored article is selected by the program committeebased on the submissions received for the formal review process. The prizecarries a cash award equivalent to 150 Euros.

The 30th IFL is organized by the University of Massachusetts Lowell.The City of Lowell is located at the heart of the Merrimack Valley just 30 milesnorthwest of Boston. Lowell can be easily reached by train or taxi.See the website for more information on the venue.

### Acknowledgments

This call-for-papers is an adaptation and evolution of content from previousinstances of IFL. We are grateful to prior organizers for their work, which isreused here.

A part of IFL 2018 format and CFP language that describes conditionally acceptedpapers has been adapted from call-for-papers of OOPSLA conferences.